Adroid network development and map development

Android generally uses httpconnection to upload files to access network resources. You can also use the httpclient class encapsulated by Android. I have sorted out related network knowledge before 《Android httpclient file upload and httpconnection knowledge, A recent project is useful for setting the APN. It is found that httpconnection sometimes cannot access the network. After many debugging, it is found that the network is stuck in httpconnection. openconection (). Finally, it is helpless to switch to the httpclient class encapsulated by Android, and the problem is solved later. Android
4.0 or more systems without write_apn_setting are invalid.

Record the use of a Google Map. Sometimes we often use the longitude and latitude of a certain place when using a map to locate the location. Sometimes it will be troublesome for me to search for the longitude and latitude of a certain place, the methods provided by netizens are summarized as follows:

Taking the longitude and latitude of Fuzhou as an example:

1. Enter Fuzhou in Google Map

2. Right-click the sign and choose what? You can obtain the longitude and latitude of the search location.

3. With this technique, you do not need to access Google's longitude and latitude for map-related positioning.